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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     * <a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     * <a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    <a name="line.17"></a>
<FONT color="green">018</FONT>    package org.apache.commons.dbcp;<a name="line.18"></a>
<FONT color="green">019</FONT>    <a name="line.19"></a>
<FONT color="green">020</FONT>    import java.sql.CallableStatement;<a name="line.20"></a>
<FONT color="green">021</FONT>    import java.sql.Connection;<a name="line.21"></a>
<FONT color="green">022</FONT>    import java.sql.ResultSet;<a name="line.22"></a>
<FONT color="green">023</FONT>    import java.sql.SQLException;<a name="line.23"></a>
<FONT color="green">024</FONT>    import java.util.List;<a name="line.24"></a>
<FONT color="green">025</FONT>    <a name="line.25"></a>
<FONT color="green">026</FONT>    import org.apache.commons.pool.KeyedObjectPool;<a name="line.26"></a>
<FONT color="green">027</FONT>    <a name="line.27"></a>
<FONT color="green">028</FONT>    /**<a name="line.28"></a>
<FONT color="green">029</FONT>     * A {@link DelegatingCallableStatement} that cooperates with<a name="line.29"></a>
<FONT color="green">030</FONT>     * {@link PoolingConnection} to implement a pool of {@link CallableStatement}s.<a name="line.30"></a>
<FONT color="green">031</FONT>     * &lt;p&gt;<a name="line.31"></a>
<FONT color="green">032</FONT>     * The {@link #close} method returns this statement to its containing pool. (See {@link PoolingConnection}.)<a name="line.32"></a>
<FONT color="green">033</FONT>     *<a name="line.33"></a>
<FONT color="green">034</FONT>     * @see PoolingConnection<a name="line.34"></a>
<FONT color="green">035</FONT>     * @version $Revision: 883040 $ $Date: 2009-11-22 01:01:20 -0500 (Sun, 22 Nov 2009) $<a name="line.35"></a>
<FONT color="green">036</FONT>     * @since 1.3<a name="line.36"></a>
<FONT color="green">037</FONT>     */<a name="line.37"></a>
<FONT color="green">038</FONT>    public class PoolableCallableStatement extends DelegatingCallableStatement implements CallableStatement {<a name="line.38"></a>
<FONT color="green">039</FONT>    <a name="line.39"></a>
<FONT color="green">040</FONT>        /**<a name="line.40"></a>
<FONT color="green">041</FONT>         * The {@link KeyedObjectPool} from which this CallableStatement was obtained.<a name="line.41"></a>
<FONT color="green">042</FONT>         */<a name="line.42"></a>
<FONT color="green">043</FONT>        private final KeyedObjectPool _pool;<a name="line.43"></a>
<FONT color="green">044</FONT>    <a name="line.44"></a>
<FONT color="green">045</FONT>        /**<a name="line.45"></a>
<FONT color="green">046</FONT>         * Key for this statement in the containing {@link KeyedObjectPool}.<a name="line.46"></a>
<FONT color="green">047</FONT>         */<a name="line.47"></a>
<FONT color="green">048</FONT>        private final Object _key;<a name="line.48"></a>
<FONT color="green">049</FONT>    <a name="line.49"></a>
<FONT color="green">050</FONT>        /**<a name="line.50"></a>
<FONT color="green">051</FONT>         * Constructor.<a name="line.51"></a>
<FONT color="green">052</FONT>         * <a name="line.52"></a>
<FONT color="green">053</FONT>         * @param stmt the underlying {@link CallableStatement}<a name="line.53"></a>
<FONT color="green">054</FONT>         * @param key the key for this statement in the {@link KeyedObjectPool}<a name="line.54"></a>
<FONT color="green">055</FONT>         * @param pool the {@link KeyedObjectPool} from which this CallableStatement was obtained<a name="line.55"></a>
<FONT color="green">056</FONT>         * @param conn the {@link Connection} that created this CallableStatement<a name="line.56"></a>
<FONT color="green">057</FONT>         */<a name="line.57"></a>
<FONT color="green">058</FONT>        public PoolableCallableStatement(CallableStatement stmt, Object key, KeyedObjectPool pool, Connection conn) {<a name="line.58"></a>
<FONT color="green">059</FONT>            super((DelegatingConnection)conn, stmt);<a name="line.59"></a>
<FONT color="green">060</FONT>            _pool = pool;<a name="line.60"></a>
<FONT color="green">061</FONT>            _key = key;<a name="line.61"></a>
<FONT color="green">062</FONT>    <a name="line.62"></a>
<FONT color="green">063</FONT>            // Remove from trace now because this statement will be <a name="line.63"></a>
<FONT color="green">064</FONT>            // added by the activate method.<a name="line.64"></a>
<FONT color="green">065</FONT>            if(_conn != null) {<a name="line.65"></a>
<FONT color="green">066</FONT>                _conn.removeTrace(this);<a name="line.66"></a>
<FONT color="green">067</FONT>            }<a name="line.67"></a>
<FONT color="green">068</FONT>        }<a name="line.68"></a>
<FONT color="green">069</FONT>    <a name="line.69"></a>
<FONT color="green">070</FONT>        /**<a name="line.70"></a>
<FONT color="green">071</FONT>         * Returns the CallableStatement to the pool.  If {{@link #isClosed()}, this is a No-op.<a name="line.71"></a>
<FONT color="green">072</FONT>         */<a name="line.72"></a>
<FONT color="green">073</FONT>        public void close() throws SQLException {<a name="line.73"></a>
<FONT color="green">074</FONT>            // calling close twice should have no effect<a name="line.74"></a>
<FONT color="green">075</FONT>            if (!isClosed()) {<a name="line.75"></a>
<FONT color="green">076</FONT>                try {<a name="line.76"></a>
<FONT color="green">077</FONT>                    _pool.returnObject(_key,this);<a name="line.77"></a>
<FONT color="green">078</FONT>                } catch(SQLException e) {<a name="line.78"></a>
<FONT color="green">079</FONT>                    throw e;<a name="line.79"></a>
<FONT color="green">080</FONT>                } catch(RuntimeException e) {<a name="line.80"></a>
<FONT color="green">081</FONT>                    throw e;<a name="line.81"></a>
<FONT color="green">082</FONT>                } catch(Exception e) {<a name="line.82"></a>
<FONT color="green">083</FONT>                    throw new SQLNestedException("Cannot close CallableStatement (return to pool failed)", e);<a name="line.83"></a>
<FONT color="green">084</FONT>                }<a name="line.84"></a>
<FONT color="green">085</FONT>            }<a name="line.85"></a>
<FONT color="green">086</FONT>        }<a name="line.86"></a>
<FONT color="green">087</FONT>    <a name="line.87"></a>
<FONT color="green">088</FONT>        /**<a name="line.88"></a>
<FONT color="green">089</FONT>         * Activates after retrieval from the pool. Adds a trace for this CallableStatement to the Connection<a name="line.89"></a>
<FONT color="green">090</FONT>         * that created it.<a name="line.90"></a>
<FONT color="green">091</FONT>         */<a name="line.91"></a>
<FONT color="green">092</FONT>        protected void activate() throws SQLException {<a name="line.92"></a>
<FONT color="green">093</FONT>            _closed = false;<a name="line.93"></a>
<FONT color="green">094</FONT>            if( _conn != null ) {<a name="line.94"></a>
<FONT color="green">095</FONT>                _conn.addTrace( this );<a name="line.95"></a>
<FONT color="green">096</FONT>            }<a name="line.96"></a>
<FONT color="green">097</FONT>            super.activate();<a name="line.97"></a>
<FONT color="green">098</FONT>        }<a name="line.98"></a>
<FONT color="green">099</FONT>    <a name="line.99"></a>
<FONT color="green">100</FONT>        /**<a name="line.100"></a>
<FONT color="green">101</FONT>         * Passivates to prepare for return to the pool.  Removes the trace associated with this CallableStatement<a name="line.101"></a>
<FONT color="green">102</FONT>         * from the Connection that created it.  Also closes any associated ResultSets.<a name="line.102"></a>
<FONT color="green">103</FONT>         */<a name="line.103"></a>
<FONT color="green">104</FONT>        protected void passivate() throws SQLException {<a name="line.104"></a>
<FONT color="green">105</FONT>            _closed = true;<a name="line.105"></a>
<FONT color="green">106</FONT>            if( _conn != null ) {<a name="line.106"></a>
<FONT color="green">107</FONT>                _conn.removeTrace(this);<a name="line.107"></a>
<FONT color="green">108</FONT>            }<a name="line.108"></a>
<FONT color="green">109</FONT>    <a name="line.109"></a>
<FONT color="green">110</FONT>            // The JDBC spec requires that a statment close any open<a name="line.110"></a>
<FONT color="green">111</FONT>            // ResultSet's when it is closed.<a name="line.111"></a>
<FONT color="green">112</FONT>            // FIXME The PreparedStatement we're wrapping should handle this for us.<a name="line.112"></a>
<FONT color="green">113</FONT>            // See DBCP-10 for what could happen when ResultSets are closed twice.<a name="line.113"></a>
<FONT color="green">114</FONT>            List resultSets = getTrace();<a name="line.114"></a>
<FONT color="green">115</FONT>            if(resultSets != null) {<a name="line.115"></a>
<FONT color="green">116</FONT>                ResultSet[] set = (ResultSet[])resultSets.toArray(new ResultSet[resultSets.size()]);<a name="line.116"></a>
<FONT color="green">117</FONT>                for(int i = 0; i &lt; set.length; i++) {<a name="line.117"></a>
<FONT color="green">118</FONT>                    set[i].close();<a name="line.118"></a>
<FONT color="green">119</FONT>                }<a name="line.119"></a>
<FONT color="green">120</FONT>                clearTrace();<a name="line.120"></a>
<FONT color="green">121</FONT>            }<a name="line.121"></a>
<FONT color="green">122</FONT>    <a name="line.122"></a>
<FONT color="green">123</FONT>            super.passivate();<a name="line.123"></a>
<FONT color="green">124</FONT>        }<a name="line.124"></a>
<FONT color="green">125</FONT>    <a name="line.125"></a>
<FONT color="green">126</FONT>    }<a name="line.126"></a>




























































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